So, if you want to help, just clone the repository and start creating art. I would ask you not to fork the themes, but improve these ones - just make merge requests and I’ll accept them as soon as possible. Don’t forget to add yourself to the list of authors.

If you prove to be a serious contributor, you’ll get direct commit permissions to the whole repo.

git.kde.org

If you’re wondering why I didn’t use git.kde.org but Gitorious, the main reason is that the repo was created long before git.kde.org was even in plans, and I just haven’t blogged about it.